You should shut down any applications that are operating on the stream before you
delete it. If an application attempts to operate on a deleted stream, it receives
ResourceNotFound exceptions. Also, if you subsequently create a new
stream that has the same name as your previous stream, and applications that were
operating on the previous stream are still running, these applications might try to
interact with the new stream as though it was the previous stream—which would
result in unpredictable behavior.